Solve for r:2r+7=13 Please help?

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asked Jan 6, 2019 86.1k views

1 Answer

Eckig · Answer 1 · 2019-01-12T18:46:45+0000

Hiya!

Switch the equation around:

2r + 7 = 13 ⇒ 13 - 7 = 2r

The sign changes when moved to the other side( + to -)

13 - 7 = 6

(6)/(2) = (2r)/(2)

r = 2

Solve for r:2r+7=13 Please help?

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